If you're barbaric enough to still use disposable alkaline batteries instead of new generation rechargeables like Eneloops, then you'll be stoked by this news Atouk. Panasonic's new EVOLTA lineup is said to perform "almost 1.3 - 2 times" longer than their existing alkalines. In fact, they now claim to have the "longest lasting AA battery cell in the world." For that, Panny will charge you an approximate 15% premium when they hit the market on April 26th.